#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
ll a[500000];
ll n,m;
int main()
{
	cin>>n>>m;
	for(int i=1;i<=n;i++) cin>>a[i];
	while(m--)
	{
		ll op;
		cin>>op;
		if(op==1)
		{
			ll x,y,k;
			cin>>x>>y>>k;
			for(ll i=x;i<=y;i++)
			{
				a[i]+=k;
			}
		}
		else if(op==2)
		{
			ll x;
			cin>>x;
			cout<<a[x]<<endl;
		}
	}
	return 0;	
} 

Why 70pts?? And TLE??

违规紫杉